Excavating-shovel.



C. J. H5155. EXCAVATING SHCVEL.

" LPYLICATION FILED PEB. 15. 1910.

955,285, l Y Patented Agvi, wm.

'l SHEETS-SHEET 2.

C/mrles vJ. Reise, aww-Mu,

J5? a@ QM/md A Sunnah A 50 gaged with the latchlate 8 secured at the V(II-l'AItlZJ-SS J. REISE. OF OMAHA. -NEBRASKA.

EXCAVATING-SHOVEL.

Specification of Letters Patent.

Patented Apr. 19, 1910.

Application filed February 15. 1910. Serial No. 544,086.

To all whom it may concern:

Be it known that I, CHARLES J. REISE, a

citizen of the United States, and a residentl ing-Shovels, of which the following is a specification.

My invention relates to excavating shovels of the class adapted for operation through two ilcxible connections, such as cables, the one connection being used to hoist the shovel when loaded, and. the other being used to pull lthe shovel along the ground to load the saine, and also to control the dumping thereof.,

It is the objecto my invention to provide a shovel. of this class which may be accurately controlled as.' to the location at which the same is dumped and in which a relatively slight tension upon the 'draft line will be suilicient to revent dumping thereof.

Constructions ein odyin g my invention are illliistirated in the accompanying drawings, in wne i- Figure 1 is a side elevationpf the shovel.

i of the saine, Fig. 3 is a section thereof when loaded and near the dumping position, and Fig. 4; is a similar view. showing the parts in fulldnmpin position. A

The main b y -of the shovel comprises a shell 1 of approximately rectangular crosssection but preferabl having the bottom slightly rounded as s own, the shell being open at the front and a portion of thetop thereof, being provided at its lower front edge with a cutting-blade 2 and at its rearward end with a swingable door 3. The door 3 is hinged by means o the curved bars 4 to the top of the shell near4 the rearward end thereof, and is provided with a latchbar 5 vertically slidable in suitable guides arran ed on the rearward side thereof. The

` by means of i spring 6 which engages a collar 7 clamped upon the latch-bar and adjustable thereon to vary the compression of the spring. The lower end of the bar is beveled to. form a latch adapted to be enwer rearward end o the shell 1, and thus to retain the d 'oor in closed position. The upper end of the latch-bar has a forwardly-turned hook portion 9 adapted for engagement with one arm of a small bellciank 10 which is pivoted on the upper side of thc shell. The other arm of said hellerank is connected by means of la rod ll with a second bell-crank l2 pivolcd' on the cross-piece 13 near the front end of the shell. A hoisting-bail 1l is pivotally connected with the sides of the shell at points such that. when the shovel is loaded the pivotal will pass below and slightly in ront ot the center of gravity thereof. By a suitable design, approximately as shown, the shovel may be so proportioned that when ein ty the pivotal axis will pass substantial y below the center of gravity thereof.

The draft-bail 15 is connected with lthe shovel above and in front of the edge of the cutting-blade Q, and above thc pivotalv axis4 of the hoisting-bail's that when the shovel is wholly or partly suspended from the hoisting-bail a pull upon the draft-lmil will tend to tilt the front part of the shovelslightly downward and cause the saine to cutat a suit-able angle into the material to be cxcavated.

The shovel is loaded b v dragging the saine along in a substantially horizontal position by suitable tension upon the draft line 16 connected with the bail 15. After the shovel is loaded it is hoisted by suitable tension upon the hoisting line 17 connected with the bail 14, and swung to the desired dumping location, a certain tension being incanwhile maintained upon the draft line sufficient to prevent the shovel tilting b ackward to a vertical osition. It is not necessary that the shove during the hoisting operation be held at or near'a horizontal position by tension upon the draft line, as it may be ermittedto tilt backward to a position suc as shown in Fig. 3 before it will be caused to dump. When the desired dumping location has been reached all tension upon the draft line is released and the shovel is thus permitted to tilt to the position shown in Pig. 4, at which the front arm of the bell-cran '12 is engaged by the releasing hook' 18 carried by the bail 14 at the position shown; Movementof said bell-crank 12 is communicated through the rod 11 to the bell-crank 10, and the latter, by ulling upon the hook ortion 9 of the latc -bar, disen- .gages the ower end thereof from the latchplate 8 so that the door 3 is perniittedlt'o swing downward and the contents of the shovel to be discharged by gravity there` from. After the shovel is dumped, tension y i I i i upon the drait li--e returns the same to the horizontal position and causes the door 3 to .return by gravity to its closed position at which the latch-bar again engages the plate S to retain the door in closed position, and the filling operation may be repeated.

It'will bc noted that in the use of my shovel the dumping location thereof may be .accurately gaged, since the saine may be swung to the exact location desired and then caused to dump by a very additional relaxation of the tension upon the draft line, so that such release of tension upon the draft -line need canse .hut little change in the location of the shovel. It will also be noted that the spill is confined practically to a space the sameas the cross-section of the shovel, since the door 3 when released will open very quickly and permit the contents of the shovel to be discharged straight downward.

Now, having described my invention7 what I claim and desire to secure by Letters Patent is:

l. -An excavating shovel comprising a shell open at the front end, a swingable door ai'- ranged at the rearward end thereof, a iaichA for'holding the door in closed position, hoisting means pivotally connected with the shell on an axis such that when loaded the shell will ten'd to tilt backward, draft rigging connected with the front part of the shell, and means for releasing the latch operatable by backward tilting of the shell to a certain definite position. Y

2. An 'excavating shovel comprising a shell open at the front end, a door arranged at the'rearward end thereof, the door beingl swingably connected with the shell. so as to close by gravity when the shell is in horizontal position, a latch arranged to hold the door in closed position, hoisting means pivotally connected with the shell. on an axis i such that when loaded the shell will tend to tilt backward, draft rigging connected with the shell so that tension thereon tends to.

turn the shell to a substantially horizontal position, and means for releasing the latch operatahle by backward tilting of the shell to a predetermined position.

3. ln an excavating shovel, a shell open at the front end, a door arranged at the rearward end thereof and swingably connected therewith so as to .close by gravity when the shell is in a horizontal position, a latch arranged to hold the door in closed position, hoisting means pivotally connected with the ally connected shell on an axis such that when loaded the shell will tend to tilt backward, draft rigging connected with the shell so that tension thereon will tend to turn Ythe shell to a substantially horizontal position, and means for releasing the latch comprising anl element normally connecting with the latch, connectingl devices, and a releasing member carried by the hoisting means and engageable with .said connecting devices when the shell is tilted backward to a predetermined position.

4. In an excavating shovel, a receptacle open at one end and having a cutting-hlade at one side of said open end, a door arranged at the other end and pivotally connected therewith, Vspring-pressed means arranged to retain the door in closed position, hoisting means pivotally connected with the receptacle on an axis such that it will tend when loaded to tilt toward the end having the door, draft devices arranged forvpulling the receptacle with the open endforwaid,

and means for 'releasing the spring-pressed door-retaining means, said releasing means being operatable by the tilting of the recepv tacle to a predetermined position.

5. In an excavating shovel, a shell open at the front end and having a cutting-blade at one side of saic. open end, a door arranged at the rearward end of the shell and pivot- .'ith the shell on an axis such that when the shell is in horizontal position the dooi will tend to close by gravity, a yieldably-pressed latch for retaining the door in closed position, a hoisting-bail pivoted to the shell on an axis such that when loaded the shell will tend to tilt backward to a vertical position, a draft-bail connected with the forwardv part of the shell and in such relation to the hoisting-bail axis that a pull on said draft-bail tends to turn the shell to a substantially horizontal position, a member carried by the hoisting-bail, and means connecting with the latch and arranged to engage said member on the hoisting-bail when the shell is tilted backward and to be actuated thereby to release the latch.

In testimony. whereof I have hereunto subscribed my name in the presence of two witnesses.

CHARLES J. REISE. Witnesses D. O. Balmain., ROY G. liia'rz.

'isl 

